New user - Just set up my 1500w conversion

[gstanley]

Hi all,

Already a pretty keen cyclist I am however new to the world of electric bikes due to being banned from driving. I decided this would be the best way of getting around for a while, what with living in a rural area.

This week I have taken delivery of my new 1500w rear hub motor conversion kit from 'Passion E-Bike' in China. Along with a 48v 20ah triangular battery, again from china.

So today i set about installing it all on my old mountain bike and eventually this evening got out on the road to take it for a spin despite it being dark, cold and wet. God I hate winter.



Surprised at how well it went! Went for a blast into the next village and got there in no time, turned round and on the way back went over a pot hole and the power cut out... Not sure what happened, must be something come loose/disconnected I'm guessing (hoping), will have to inspect tomorrow. Didn't have time when i got back.

Is there anyone else with this sort of set up? I am 10 miles away from my local town and wanted a bike capable of sitting at around 30-40mph for each way, I'm hoping i made the right choice with my set up.

Didn't want to fit the brake levers and the bike has hydraulic brakes anyway, and I will fit the pedal assist sensor another time when I get a crank remover.

 

[Fordulike]

Nice set-up. Couldn't see on your photo if you've fitted any torque arms.

On a higher powered motor it's a must. If the axle spins in the drop-out, it could damage the wiring, or worse, cause the wheel to come off entirely. If you are going 40mph at the time.. ouch

 

[cyclebuddy]

...due to being banned from driving... I have taken delivery of my new 1500w rear hub motor conversion kit...Went for a blast into the next village...I am 10 miles away from my local town and wanted a bike capable of sitting at around 30-40mph for each way...I will fit the pedal assist sensor another time when I get a crank remover.

Hate to be a kill-joy, but your bike is totally illegal for road use: Anything with more than a 250w motor and powered beyond 15mph needs licensing like a moped/motorcycle... road tax, number plates, MOT, insurance... and importantly, you need a driving license! And it needs to be pedalled, not powered by a throttle.

You're taking a big risk using it, and can be prosecuted with penalty points and even be banned from driving (again). I am of course assuming that you're not whizzing along at 30-40mph across a privately owned field for the 10 miles to your next town.

There's more info on the legal side of using road-legal pedelecs in the guides above.

 

[STEVEMANFA]

I'm sure if you ride that at 30/40 mph and don't pedal you will get a tug by the police.

 

[10JP]

I guess as you say something has come adrift somewhere so a process of elimination is the best way to go, I would start with the battery connections, Watch the boys in blue though!

 

[Fordulike]

I'm sure if you ride that at 30/40 mph and don't pedal you will get a tug by the police.

Ooooooh sounds kinky

 

[danielrlee]

Hi, welcome to the forum and the world of ebiking.

Your setup isn't dissimilar to my main ride. Although talk above of illegality is largely factual, if you don't ride like a dick, you won't attract attention. Please make sure that you install torque arms though. If you don't, its not a matter of if your dropouts will fail, but when!

 

[gstanley]

Hey everyone,
Surprised at the amount of replies received already!

I haven't got torque arms, will have to look into sorting some ASAP if this is the case, thanks for letting me know!

On the legality side of things; I was aware of the law with e bikes before purchasing my set up, however the road to my town is a solely quiet back roads, can't remember the last time I saw police use it, and as said above, I won't be riding like a dick and will slow down if I see police. Will ride sensibly in town etc.
Hope not to offend anyone here by not having a legal set up, but 15mph and 250w just doesn't appeal to me at all, can cycle faster than that lol

Cheers all for your replies!

 

[Deleted member 4366]

I don't see any mirrors on your bike. That's the first thing I'd get.

Torque arms are absolutely necessary for it - even more so if you use the regen. Fit one on each side to stop the axle from twisting.

 

[Andy Bluenoes]

That battery looks very appealing to me 20ah, that would allow me to get to work a lot quicker

 

[Artstu]

That battery looks very appealing to me 20ah, that would allow me to get to work a lot quicker

Really ? so you currently have to stop to recharge your battery on the way to work?

 

[Andy Bluenoes]

No, but I cant run the bike anything like on full whack unless i want to drain it.

 

[Artstu]

No, but I cant run the bike anything like on full whack unless i want to drain it.

Ah I see what you mean now, It must be a long commute, Whoosh would say you can go 120 miles or so on 20ah.

 

[Andy Bluenoes]

15 miles, I can do it in about 50 minutes at the moment, but thats pushing the battery range just a bit. I have ran out of juice a couple of times. so tend to be a bit more conservative with the power now just to be safe.

 

[Artstu]

15 miles, I can do it in about 50 minutes at the moment, but thats pushing the battery range just a bit. I have ran out of juice a couple of times. so tend to be a bit more conservative with the power now just to be safe.

ooh that is slow my weedy Bosch does this

 

[Andy Bluenoes]

ooh that is slow my weedy Bosch does this
View attachment 17437

You must be blasting some of the roadies strava records away

 

[gstanley]

I don't see any mirrors on your bike. That's the first thing I'd get.

Torque arms are absolutely necessary for it - even more so if you use the regen. Fit one on each side to stop the axle from twisting.

Ah that's just reminded me about mirrors, it's on the list - thanks for that!

Do you/anyone else here know where's best to order some torque arms from?

That battery looks very appealing to me 20ah, that would allow me to get to work a lot quicker

Yeah the battery seems pretty decent, and is lighter than I was expecting too. The bag didn't take long to rip though as it's quite thin

 

[Artstu]

You must be blasting some of the roadies strava records away

I used to, although I only ever borrowed them for a few hours, these days I often don't even bother looking and just list as e-bike now. KOM's on the flat take some beating on a hybrid.

 

[10JP]

Ah I see what you mean now, It must be a long commute, Whoosh would say you can go 120 miles or so on 20ah.

Yes if you weighed 6 stone and it was dead flat maybe!

 

[10JP]

Hey everyone,
Surprised at the amount of replies received already!

I haven't got torque arms, will have to look into sorting some ASAP if this is the case, thanks for letting me know!

On the legality side of things; I was aware of the law with e bikes before purchasing my set up, however the road to my town is a solely quiet back roads, can't remember the last time I saw police use it, and as said above, I won't be riding like a dick and will slow down if I see police. Will ride sensibly in town etc.
Hope not to offend anyone here by not having a legal set up, but 15mph and 250w just doesn't appeal to me at all, can cycle faster than that lol

Cheers all for your replies!

I agree 15 mph/250 watt don't know what they based their facts on but I weigh 90kg and if I hadn't de-restriced mine it would struggle to achieve that